Anna Mahon, née Norgren (born 19 December 1974 in Stamford, Connecticut) is a retired female hammer thrower from the United States. Her personal best is 72.01 metres, achieved in July 2002 in Walnut, California. Mahon currently holds the position of principal at Amity Regional High School in her home state. She previously served as an English teacher, English department chairperson, and associate principal at the same school. Her husband, Sean Mahon, who also works at Amity High School, is a P. E. teacher and indoor girls' track coach.